![]() When performing the magnetic field calculation for an axial coordinate system, you can also calculate values for spheres and strip-type magnetic plates. The following basic units are available: block, disk, ring. bipolar, magnetized, geometrical basic units. See Magnetic Forces and Fields for a discussion on this. The magnet calculator makes it possible to perform field calculations for linear, i.e. The magnetic field of an arbitrarily shaped current-carrying wire can be calculated using the Biot-Savart law: Biot-Savart law for a thin wire. a) starting page, b) coil selection page, c) mapping of magnetic field generated by a circular-shaped coil, and d) magnetic-field isolines of square-shaped coil. In the following, both the case where the two currents flow in the same direction and in the opposite direction will be considered. A similar application of the magnetic field distribution created by Helmholtz coils is found in a magnetic bottle that can temporarily trap charged particles. An electric current flows through both coils of the Helmholtz coil. ![]() Helmholtz coils typically have loops with equal radii with current flowing in the same direction to have a strong uniform field at the midpoint between the loops.
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